Physics-
General
Easy
Question
Frictional force is directly proportional to the
- external force
- Normal force
- gravitation force
- acc. due to gravity
The correct answer is: Normal force
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A machine gun has a mass of 20 kg. It fires 25 g bullets at the rate of 600 bullets per minute with a speed of 200
. The recoil velocity of gun is
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Action and reaction
Action and reaction
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The tension in string OB is
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Shown in the figure, the tension in string OA is
Strings are masters and inextensible.
Shown in the figure, the tension in string OA is
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The tension in string ‘B’ is
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Shown in the figure, the tension in string ‘C’ is
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Shown in the given figure, the net force acting parallel to the inclined plane is
Shown in the given figure, the net force acting parallel to the inclined plane is
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A 150g ball, traveling at 30m/s, strikes the palm of player’s hand and is stopped in 0.05sec. The force exerted by the ball on the hand is
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A body is dropped from a height of 20 m above the ground. If gravity disappears 1 second after it starts falling, the total time it takes to hit the ground is (g = 10 ms-2).
A body is dropped from a height of 20 m above the ground. If gravity disappears 1 second after it starts falling, the total time it takes to hit the ground is (g = 10 ms-2).
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